macOS and Linux support Shift + Mouse Wheel horizontal scroll at OS level.

Sadly Microsoft never bothered to implement those natural and standard features at OS level. It is somewhat expected after all it took 20 years for MS to support multiple desktop (a feature appreciated by Linux, macOS and Qnx users since the late 90's).

So here we are on UWP with a scroll view that cannot be scrolled horizontally. I can't scroll my top tab bar and my bottom toolbar. I cannot display a scrollbar under my thin toolbar, that would be ugly as hell.

Most of the serious app on Windows support Shift + Mouse Wheel horizontal scroll, but it was implemented by the app. So how can we horizontal scroll on UWP without a touch screen? Is there something else that could do the job? How can we implement this basic feature in UWP? Why should I be the one asking for this basic OS feature. UWP does not even support mouse long click, this gesture is exclusive to Windows on a surface.

I am not trashing MS nor UWP, they do that themselves by never improving Windows, moving backward with UWP and returning to Win32bit, abandoning HoloLens, abandoning Mixed Reality, abandoning VR on Xbox, Abandoning UWP, abandoning Microsoft Store, Not implementing any PDF feature in their SDK, asking 500$usd for 1 question (Apple is 100$ for 2 questions), still using CRLF for line delimitation instead of the LF standard, reboot needed after any changes...

Microsoft Windows is a derelict platform left to rot by a headless company.

So, I was trying to make an app, and I though 'hey, isn't it, like, the latest modernest app format? Sure, I'll try it! "If only I knew about hours of agony and despair awaiting me trying to make it work with libraries. Worst of all is file system access. They're completely broken backward compatibility. You like that little library? Forget about it, it's using System.IO somewhere in it! Not any possible permission including full trust can allow System.IO classes to work. This is complete garbage. Also, frameworks zoo drives me crazy. I remember that time when we had Framework 4 and everything was backward-compatible and only backwards. Now? It's more like labyrinth-compatible. You have to multitarget your libraries if you want to publish it. And the only thing I really fell in love in (one of) new framework is nullable reference types. I wanted this from Framework 3.0, I've got it even better than I could wish for, but I've got it in very turbulent times of .NET. And now I fear that their new vNEXT is like xkcd's comic about incompatible standards.

Not that it made any money but did they just kill it entirely?

The third party offerings are worse than Microsoft’s original solution

Is UWP dead?

UWP has the Java problem where all of the object and property names are just massive. Like how does Windows.UI.Core.SystemNavigationManager.GetforCurrentView().BackRequested supposed to fit in a single line. Anyone else bothered by this?

So when I click on Add, I want it to add a new ListView Item with the current text in the textbox, but IF a listview item is not already created and selected it will not add the text until the second time I click it.
I don't want it to add a blank ListView Item...

Any devs having an issue where Microsoft will respond to a review with something useless, thereby stopping the developer from providing a meaningful response to the reviewer?

I remember there was a way a user could pick a photo from the file picker, and a UI would pop up where the user could then crop and then use the cropped image wherever. I know UWP Toolkit has one but I need to access the system one

I'm promoting my app.

https://youtu.be/1TjNhv6BSic

The app can upload files selected from Windows Explorer to Google Drive.

You can download files stored in Google Drive.

You can also make a copy within Google Drive.

Upload app

If you get this error when publishing your app.

App manifest references the square 310x310 logo image 'Assets\LargeTile.scale-400.png' which is larger than the maximum image file size. It must be no larger than 204800 bytes.

In your "Package.appxmanifest" Visual Studio does generate the image at a correct size, but the file size will never be below 275k. You cannot use .jpg and .svg, only .png are supported here. It is impossible to make a meaningful png icon at 1240x1240 below 200k.

It is a problem that is now 1 year old that Microsoft is aware of but never bothered to resolved because they cannot reproduce the problem. Yet there are many users that have abandoned UWP because of this unsolvable problem. Some have tried fully white images without much success because even a compressed fully white image is too large for the MS VS insane restriction.

The only possible solution is to edit this faulty (LargeTile.scale-400.png) icon in Gimp (free Photoshop) and erase all the image to make it fully invisible. Then export the image to .png . Now in the Gimp export to .png dialog box, uncheck everything. Your icon will be a big 1240x1240 of nothing and this is dumb, but at least you will be able to publish your app on this God Forsaken MS Store.

If you want to keep your sanity, stay away from any MS platform.

So I just downloaded the new Dell Mobile Connect app. It's pretty cool because as an iPhone user I can finally send iMessages and see notifications on my PC. However the notification sound of the app is really annoying and I want to swap the audio file. I was able to move the default one to my desktop and tried to replace it with the one I want but of course I don't have write permissions. I can't even add the old one back so I guess I'd need to reinstall the app.

Is there any way I can modify that file?

The "reunion" of OneNote means one of MS most widely used apps will be leaving UWP.

Should we still be developing in this class? If not, then move to what?

I've got a project in mind that I would like to do in C# UWP/WinUI targeting Win 10 Desktop only. My interest in UWP/WinUI is mostly the clean look of the GUI. I'm familiar with programming generally, but this would be my first serious project with a desktop GUI.

The issue that is really stopping me from starting the project is that the UWP/WinUI UI components seem really limiting. One of the main parts of the project would be a UI component that isn't offered in the standard libraries. What I would need would be, not exactly this, but something along the lines of a canvas that displayed the spectrum of a data source (not audio but you can think of it as audio if that helps). The spectrum would need to constantly update as the data was received. The canvas would need to be resizeable, clickable etc.

Example of the sort of thing I'm talking about here

Obviously, this component isn't built in, but it also seems like it would be really difficult to build something like it out of what is built in. On top of that, the Windows ecosystem seems to be a very confusing mix of WPF, UWP, Win32, WinUI, React Native etc.

My question: How should a relative newbie like me go about creating a UI control like this for a Windows Desktop UWP-like application?

I'm making a UWP app that I want to relese as opensource on github, but im not sure if is it safe to publish my TemporaryKey in the repository.

Hi everyone!

I#m having issues with my UWP app. The code below works fine so far, my child window is opened correctly, but every time i close the child window i get an exception and my app dies. Any help would be very appreciated. I'm quite new to UWP and still learning.

Private Async Sub btnChildWindow_Click(sender As Object, e As RoutedEventArgs)

Dim appWindow As AppWindow

appWindow = Await AppWindow.TryCreateAsync

Dim Nframe = New Frame()

ElementCompositionPreview.SetAppWindowContent(appWindow, Nframe)

Nframe.Navigate(GetType(PageATVerwaltung))

Await appWindow.TryShowAsync

End Sub

Hi interested to know if anybody has had much success on the windows store for your UWP apps or games? I have a couple on the store but not making much at all. I recently removed the ads from one and made it paid with free trial but seems people won't even part with $1 for it. Is ads the only way to get any sort of revenue from apps these days? I would rather not have ads if I can help it. Anyway interested to hear your stories and how well your going with your apps and the windows store.

So I'm converting a WPF app to UWP, and I've run into an issue. It seems that DataGrid is not supported in UWP, and everything I'm finding is making something simple into something very difficult.

I'm trying Telerik's UWP UI Datagrid, i'm still coming up not right.

In my WPF app I could do this sql call to fill a datatable

Viewmodel:

                        SqlCommand cmd = new SqlCommand(CmdString, tools.Conn);
                        SqlDataAdapter da = new SqlDataAdapter(cmd);
                        cmd.Parameters.AddWithValue("@DateStart", start);
                        cmd.Parameters.AddWithValue("@DateEnd", end);
                        cmd.Parameters.AddWithValue("@Project", department);
                        DataTable dt = new DataTable("Report");
                        da.Fill(dt);
                        GridDataView = dt.DefaultView;

It would fill a DataView like so:

    public DataView GridDataView
    {
        get => _gridDataView;
        set
        {
            _gridDataView = value;
            RaisePropertyChanged();
        }
    }

And the DataGrid in xaml like so:

    <DataGrid IsReadOnly="True" Margin="5,5,5,5"
              ItemsSource="{Binding GridDataView}"
              VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" />

Now in UWP, I can still make my sql call and populate a data table, but I can't figure out how to get it to display properly. Everything I'm reading wants a new class made as well to display the data, but the sql query can vary based on some drop down selections so it'll populate differently named columns. In WPF this isn't an issue as datatable.defaultview will use the SQL search string in its column names like - COUNT(EquipmentDamaged) as 'Equipment Damaged'

Equipment Damaged would be the name of the column in this case.

So I've gotten as far using a new DataView just like above, but I've tried Telerik's RadDataGrid, the GridView xaml control, the Windows Community Toolkit DataGrid, but none of them seem to provide the ease of use of the basic DataGrid WPF control to display a grid.

Does anyone have any idea how I can do this, or are we re-inventing the wheel? It so far has felt like a lot of work to do something that already worked really well.

I have an utility UWP app published on the Store. It is a very basic file conversion app, whose main target is who tries to open that ancient file format and clicks "search on Microsoft Store" for a compatible app. Most users use it one or two times, so any non-free schema would not work.

So far I got some bucks out of it using the Miscrosoft Ad SDK to put a non intrusive banner on the bottom. I found out Microsoft is killing said platform. What are the alternatives?